To define polarized character of dye Q-switched Nd3+: YAG laser of one output laser pulse, polarized beam divider cube and dual-channel laser energy meter are used. The energy proportion of P-polarized laser burst and S-polarized laser burst is measured after polarized beam dividing and the polarized character of laser is analyzed and generalized. The results indicated that a great individual difference is existent and the unitarity can not be found in polarized character of laser. Polarized character of variant laser is different, Polarized character of front-to-rear laser burst is concordant, or smaller diversity, or completely random. The reason of polarized character will be researched further.%为了确定染料调Q的Nd3+:YAG激光器发射的单次激光脉冲的偏振性,利用偏振分束立方体和双通道激光能量计,实验测量了激光脉冲经偏振分束后P偏振光和S偏振光的能量比,分析总结了激光器的偏振性.结果表明:激光器偏振性个体差异很大,不存在统一性;每一台激光器都有各自的偏振性,同一台激光器前后发射的激光脉冲的偏振性可能一致,也可能变化较小,也可能完全随机.产生偏振性的具体原因有待进一步研究.
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